Why my site lionshuang.com couldn’t be open, just display a blank page?

I didn’t do anything about it.

解决问题

我大 Bluehost 当天就回复了邮件如下：

Hello,

This is typically are result of a broken/corrupt theme or plugin.

Most of the time, one of these troubleshooting solutions resolves this:
(All of which you can do with FTP access, SSH or through File Manager)

1) Check your Error Logs. You can usually see your error logs by adding /error_log to the end of your domain name. This usually gives you a good idea of where the issue is that is causing the white screen. I already checked this for you and I found this error:
[17-Dec-2013 13:28:12 UTC] PHP Fatal error: Call-time pass-by-reference has been removed in /home2/lionshua/public_html/Blog/wp-content/plugins/instapress/instagram.php on line 306
This plugin is causing the white screen. You will want to disable this plugin by renaming the folder for the plugin.

2) Check the .htaccess file

.htaccess can be tricky. The easiest way to see if your .htaccess is the cause of this error is to rename the file. Rename .htaccess to .htaccess_old

If this resolves the issue, then you know where the problem is. You can modify the .htaccess code, or just create a new one.
If it does not resolve the issue, then rename the file back to .htaccess.

3) rename the wp-content/plugins folder

If this resolves the problem, you know it was one of your plugins. You will have to re-activate the plugins one by one to determine which one cased the problem. Once it is found, you should see about installing a new version, consulting the plugin developer/vendor, or just not using it.

If it does not resolve the issue, then rename the folder back to wp-content/plugins

4) rename the wp-content/themes folder or use phpmyadmin to change the theme you are using

If this resolves the problem, you know it was your theme. In this case, you should install a new version of that theme, consult with the theme developer, or pick a different one.

If it does not resolve the issue, then rename the folder back to wp-content/themes.